Pipelined Two-Operand Modular Adders

Radioengineering

关键词: Carry-lookahead adder;    FPGA;    modular adder;    parallel-prefix adder;    residue number system (RNS);    ripple-carry adder;    VLSI design;   

DOI  :  

来源: DOAJ

【 摘 要 】

Pipelined two-operand modular adder (TOMA) is one of basic components used in digital signal processing (DSP) systems that use the residue number system (RNS). Such modular adders are used in binary/residue and residue/binary converters, residue multipliers and scalers as well as within residue processing channels. The design of pipelined TOMAs is usually obtained by inserting an appriopriate number of latch layers inside a nonpipelined TOMA structure. Hence their area is also determined by the number of latches and the delay by the number of latch layers. In this paper we propose a new pipelined TOMA that is based on a new TOMA, that has the smaller area and smaller delay than other known structures. Comparisons are made using data from the very large scale of integration (VLSI) standard cell library.

【 授权许可】

Unknown